/*
* This function puts a delay between command
*/
static void swI2CWait(void)
{
/* find a bug:
* peekIO method works well before suspend/resume
* but after suspend, peekIO(0x3ce,0x61) & 0x10
* always be non-zero,which makes the while loop
* never finish.
* use non-ultimate for loop below is safe
* */
#if 0
/* Change wait algorithm to use PCI bus clock,
it's more reliable than counter loop ..
write 0x61 to 0x3ce and read from 0x3cf
*/
while(peekIO(0x3ce,0x61) & 0x10);
#else
int i, Temp;
for(i=0; i<600; i++)
{
Temp = i;
Temp += i;
}
#endif
}
uint32_t ioReadMMIOData()
{
uint32_t value = 0;
unsigned char index;
for (index = 0x87; index >= 0x84; index--)
value = (value << 8) + peekIO(CRT_REGISTER, index);
return value;
}
/* Read/Write MMIO through IO Port helper */
uint32_t ioReadMMIOAddress()
{
uint32_t value = 0;
unsigned char index;
for (index = 0x82; index >= 0x80; index--)
value = (value << 8) + peekIO(CRT_REGISTER, index);
return value;
}
uint8_t Memory::peekFrom(uint16_t addr, MemoryType source)
{
switch (source) {
case MEM_RAM:
return peekRam(addr);
case MEM_ROM:
return peekRom(addr);
case MEM_IO:
return peekIO(addr);
default:
assert(false);
return 0;
}
}
